Shoe-sewing machine



v F. CHATEAUNEUF- SHOE SEWING MACHINE.

APPLICATION FILED OCT. 4.1918.-

Patented May10, 19 2 1.

F. CHATEAUNEUF SHOE SEWING MACHINE.

APPLlCATlON FILED OCT. 4. 1918.

Patented May 10,1921.

3 SHEETS-SHEET 2.

w *L'Titess F. CHATEAUNEUF' SHOE SEWINGM ACHINE. APPLICATION FILEQ OCT. 4 1MB.

3 SHEETS-SHEET 3 aw a, \IN 1 A UNITED- wa FRANK CHATEAUNEUF, or swnmrsoorr, i/rnssncnosnrrrs, ASSIGNOR: To oivx'rnn PATEN T F C snon MACHINERY conronn'riomor rn' rnnson, NEW JERSEY, A CORP RATION OF NEW JERSEY.

SHOE- SEWINGpMACHINE.

' Original application filed May 7, 1917,

the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to shoe sewing ma chines of the class ortype; employed in sewing inseams of shoes. V V

The primary ob ect of the inventlon is to improve the construction and operation of certain parts of inseam shoe sewing machines with a view of enabling the shoe to be turned more readily, and of avoiding the weakening of the between substance by making unnecessary punctures therein or by tearing or cutting the same. i

l/Vith this object in view certain features of the invention relate to a novel and improved arrangement and mode of operation of the feed point for machines of this type. In the illustrated form of the invention the feed point is mounted on the channel guide but certain features of the invention are not limited to a feed point'mounted in this man- In this illustrated construction the channel guide is made up of two parts, the

work-engaging ends of which are arranged side by'side, and the parts ofthe guide are relatively actuated during each cycle of operations to project the feed point carriedby one of the parts of the guide beyond the acting end ofthe other part, and to with- V draw it back of the actingendof thelatter.

- In the drawings Figure 1 is a viewin side machine illustrating particularly the feed" elevation of a machine embodying the invention looking fro-mthe right; Fig. 2..is'

a view in front elevation of a portion of the mechanism; Fig. 3 is a plan view of the Specification of Letters-Patent. Patented Mayii0,i1921.

Serial No. 166,943. Dividedand this application filed 0ctober4, 1918. Serial No. 256,881.

mechanism shown in 2; Fig. 4: is-a detail view in sldeelevation partly in section, illustrating particularly the feed point and channel guide mechanism Figs. 5, v6, 7 and 8 are diagrammatic views illustrating the 7 mode of operation of the feed point and channel guide; Fig. 9 is a detail view illustrating particularly the manner in which the feed point penetrates the stock.

The machine illustrated in the drawings 7 is an inseam shoe sewing'machine having the same general construction and mode of operation as themachine illustrated and described in the patent to Eppler, No.

1,108,560, dated August 25, 1914:. The ma,- chine comprises an oscillating curved hook needle 2,-a needle guide: 4:, a looper 6; a thread arm 8, ata-ke-np 10, a tension device guide. 145 aback gage,16,and

12, a channel a back rest 18. a The needle, needle guide, looper, thread arm, take-up, tension, device, back gage and back rest of the present machine havev the same construction, arrangement and mode of operation as the corresponding partsof the machine illustrated and described in applicants application, Serial No. 166,943, of

present applicationconstitutes a which the division.

The channel guide of the present machine is made up of two parts arranged side by "side. Inthe drawings the two parts. of the channel guide are indicated as 20 and 22.

The two parts of the channel guide are formed with work-engaging, blade-like. ends for engagement in thechannel in the usual manner. The two parts of the channel guide are mounted upon thefeed'slide to reciprocate therewith and are arranged to oscillate uponthe feed slide to carry their work-engaging ends toward and from the bottom of the channel. The part 20 of'the channel guide carries. a feed point 24 arranged to project into the stock below thebetween-substance of the sole at the bottom of the channel so as to cause'theshoe toloe advanced with the channel guide durlng the forward movement thereofi in the direction of feed during each cycle of operation. The oscillating movement of the part 20 of the j, part 22 of the guideis secured by screws 36 it 1 I is retracted in the direction of feed, and the feedipoint, isprojected beyond the end of *xtheflpart 22 beforethe guide is advanced in the direction of feed. The part of the channel guide is secured by a screw 26 to alever 28 pivoted by means of a stud-30 upon the-feed slide32; The screw 26 en gages in a $101.34. in the part 20 of the guide, the slot permitting a vertical adjustment of the part 20 upon the lever 28. The

' (Figsi2 and 4) tea plate orblock38 which 3 inthe plate 88 which permits the vertical is secured by a screw 40 to a lever 42 piv ,oted by means .of a stud 44 upon the feed slide 32.-. The screw 40 enga es in a slot 46 Y adjustment of the plate on the lever 42.

, Theplate is adjusted vertically on the lever 5 hymeans of an adjusting screw48 threaded into the lever and having a flange or collar 50"engagmg in a groove in the plate. The

i feed slide 32 is mounted to reciprocate longitudinally upon the stud 52 secured at one end in the frame of the machine. The levers 28 and 42 are held from movement longitudinally on their respective pivot studs 30 and 44 so that'they reciprocate with'the 7 feed slide.

Pivotal movement of the feed slide upon the stud 52 is prevented by the engagement of a block 54 formed at one end of a stud 56 secured in the-frame of the .machine in'fa slot in an arm 58 on the feed slide. Themech'anism for reciprocating the feed slidecomprises a lever 60 mounted upon'pivot' studs 62 and 64, and havin an farm-66 formed with a slot 68 (Fig. 3 in main shaft 80 of the machine. The lever which 'is'isecured astud 70'upon the upper end of which is pivoted a block 72 engaging in a groove 74 in the under side of the feed slide. .Upon the'rear end of the arm 66 is mounted a cam roll 76 engaging in a cam groove in the cam disk 78 mounted on the 'as the acting end of the part 22 is 'moved towardand fromthe bottom of the channel. 1 The -os cillating-movementsof the .lever T 1 cured to one end of a rock-shaft 84 mounted 42 upon its pivot 1 stud 44 are produced through the movements of an arm 82 se- 1 in a bearing-on the frame of the machine.

A block 86. is pivoted upon a stud 88 secured in the outer end of'the arm 82 ,and engages ina slot 90in an arm 92 on the r *lever 42. To enable the effective length of thearm 82 to be adjusted to regulate the amplitude of movement imparted to the lever 42,'the arm'is'secured to a block 94 formed on one end of the shaft 84 by means of a screw 96 passing through a slot 98 in the arm. To the opposite end of the shaft 84 is secured an arm 100 carrying a cam roll 102 engaging a cam groove in the cam disk 78. The lever 42 is formed with an arm 104 substantially parallel with the arm 92, r the arm 104 being connected with the arm 92 by a curved web 106. The arm 104 is connected with an upwardly extending arm on the lever 28 by means of a link 108. The lever 28 thus receives oscillating movement from the lever 42. It Will be noted from an inspection of the drawings, and more particularly Fig. 4, that the pivot stud 44 of the lever 42 is considerably nearer the work-engaging end of the channel guide than the pivot stud 30 of the lever 28, so that the movement of the acting-end of the part 20 of the channel guide is greater than that of the acting end of the part 22. The

rear end of the link 108 is connected with the arm 104 by means of a stud 110 mounted in a block 112 secured in a slot 114 in the arm 104. The forward end of the link 108 is connected with the lever 28 by means of a stud 116 secured in a slot'118 in the lever. Thestud '110 may be adjusted by the adjustment of the block 112in the slot 114,

be actuated to impart a movement of greater amplitude to the part 20 of the guide to disengage the end of the part 20 of the guide from the bottom of the channel and to withdraw the feed point within the acting end of the part 22. When the lever 42 is actuated to move the acting end of the part 22 of 'the guide toward the bottom of the channel, the lever 28 will be actuated to impart .a movement of greater amplitude to the part 20 on the channel guide to engage the acting end of the part 20 with the bottom of the channel and to project the feed :point beyond the part 22. The parts of the guide are constructed and arranged so that at the end of feeding movement of the feed slide the part 20 lies just at one side of the path of the needle so as to support the work firmly against the thrust of the needle as the needle pierces the work. The parts of the guide remain in engagement with the bottom of the channel-during the workpiercing stroke of the needle, after which they are actuated to disengage their work engaging ends from the channel bottom, the movement of the part 20 of the guide withdrawin the feed point back of the acting end of the part-22. Duringthe return move- .the position of the parts at a point in a cycle of operationsjju'st before the'iwork is fed. It will be noted that the acting ends-ofboth of the parts of the channel guide are engaged with the bottom ofthe channel, and

that the feed point is firmly engaged in the stock. In feeding the shoe the channel guide moves from the osition shown in Fig. 5 to that SliOWIlilIl ig. 6, so that the forward side of the'part 20 of the guide lies closeto the path of the needle. The width ofthe channel guide is considerably less than the combined width of, or the distance taken up by, the feed point and awl in the usual machines of this type, so'that the shoe may be turned much more readily during the feeding of the shoe. In such machines, the turning of the work uponthe feed point as a fulcrum enlarges the opening made by the feed point inthe stock, and the turning of thezwork on r the channel guideoften causesthe feed point tojtear or cut the stock, and also. often results indisengaging the feed point from the i 7 stock before the feeding of theshoe' is coinpleted. I Because of the proximity 'of the sides of the channel guide to the feed point,

"thus weaken tliestock. V V tendency of the feed point to tear the stock which is located substantially in the center thereof, there is no particular tendency to disengage the feed point from the stock during the turning of the shoe; Furthermore, the work is turned on theacting end of the channel guide and not upon'the feed point, so that there is no tendency to enlarge in this way the hole made by the feed point, and Also there is no during the turning ofthe shoe. As shown inFig. 9, the feed point projects from the channel. guide in a direction substantially inline with the end ofthe channel guide looking from the side thereof, so that it pro jects into the stock below the lineof' penetration of the needle indicated by .the dotted line inFig. 9, or below thebetwe'en-substance, thereby avoidingthe weakening of the between-substance by making a puncture therein. Both of the parts ofthe channel guide remain in engagement withthe'bot tom of the channel during the work-pierc ing stroke of the needle, thereby firmly supg in advance'of the channel guide the diporting thework against the thrust of the needle. Before the channel guide moves back in the direction ofthe line of feed, the part 22 of theguide is actuated to carry its acting end away from the channel'bottom, and the part 20 of the guide is actuated to withdraw the feed point back of the acting end of the part 22 of the'guide, as shown in Fig. -7. The end of the part 22 of the guide may drag'along thebottom ofthe channel as the channel guide is retracted in the direction of feed, and the withdrawal of the feed point back of the end ofthe part 22 of the guide retracted. men the channel guide has reached its retracted position in the direction of the line of feed, the part 22 of the guide is actuated to engage its acting end with thebottom of the channel, and the part 20 is actuated to project the feed point beyond the end of the part 2 2 of the guide, and to engagethe end of the part 20 of the guide with'the bottom'of the channel; With this construction, the leaving of a puncture in the between-substance at one side of the needle puncture, and thereby weakening the between-substance, as is often'donexin the usual machine of thistype, when either-the needle or the awl is bent'out ofposition, is avoided.

Having explained the nature-and object of the invention, andhaving specifically described a machine embodying theinvention in its preferred form, what is claimed is:

.1; An inseam shoe sewing machine, having in combination, stitch forming devicesfl ncluding a hook needle, a guide for engagement in the channel, a feed-point arranged in advance of said guide in'the direction of feed to engage the work upon the side ofthe between-substance opposite the needle, and

:means for advancing the feed-point in the direction of feed into a limiting positioniout of line; with the needle and for retracting the feed point, and formoving thelchannel guide-with thefeed point.

2. An inseam shoe sewing machine, having means for fadvanci'ng the feed point in the direction of feed into a limiting position out of line with the needle and for retracting up the feed point. r I I w v V f'An-inseain shoe sewing mach ne, having in combination, st1tch"forming devices 111'- cliiding a hook needle, a guide for engagement' in the channel arranged to engage the work on the side ofthe between-substance opposite the needle, "aj feed'point arranged rection of feed to engage the work on the guide side of thebetwe'en-substance, and

means for advancing the feed point in the direction of feed to a limiting position out of line with the needle, and for retracting the feed point 

